A.What about my toy bear?
B.Is it on your bed?
C.No, it isn't.
Alice：Mum，where is my car? Is it in the toy box?
Mum：____ It's in the desk.
Alice：Oh，thanks.____
Mum：____
Alice：Oh，yes，it is.
Tigers __________eat fruit and camels __________ eat meat.
华北平原农业可持续发展的必由之路是（ ）
7－0=____
